[sdiy] MIDI optocouplers

[Fredrik Carlqvist]

I never got the PC112 working. So if it's the same as TLP112, it won't cut
it. I think I have tried all cheap optos from our local dealer. Their
catalogue showed the PC112 had connections to the base, but it didn't. You
really need that for the slower ones...

The 10MHz HPCL2631 is like ?15 there... and I want a 1? solution! I can't
let the opto suck up half the dough for the entire synth!


Fredrik C